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Stable isotope on the evaluation of water quality in the presence of WWTPs in rivers.
- Source :
- Environmental Science & Pollution Research; Sep2016, Vol. 23 Issue 18, p18175-18182, 8p
- Publication Year :
- 2016
-
Abstract
- We investigated the distribution of nitrogen compounds in Han River as well as two tributaries of Tancheon and Jungrangcheon. Particularly, we observed the significant releases of NH -N from effluent of wastewater treatment plants (WWTPs) in two tributaries that has resulted in the increases of ammonium nitrogen (NH -N) in Han River as well as in Tancheon and Jungrangcheon. Due to the increases of NH -N in two tributaries, the larger distribution of δN-NH was observed than those of δN-NO in downstream. We calculated the contribution rate of ammonium nitrogen and nitrate nitrogen from effluent to downstream according to the results of stable isotope. The contribution rates of δN-NH from effluent to downstream were significant that ranged between 53 and 100 % in Tancheon and between 27 and 100 % in Jungrangcheon. While the contribution of δN-NO was not significant in Tancheon, it was occasionally observed in Jungrangcheon. These results demonstrated that WWTPs are the major sources of NH -N in two tributaries, which caused the distinguishable stable isotope of δN-NH . Therefore, the stable isotope of δN-NH could be a useful parameter or tracer for the evaluation of NH-N released from WWTPs in rivers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09441344
- Volume :
- 23
- Issue :
- 18
- Database :
- Complementary Index
- Journal :
- Environmental Science & Pollution Research
- Publication Type :
- Academic Journal
- Accession number :
- 118173418
- Full Text :
- https://doi.org/10.1007/s11356-016-6990-9